MATLAB: How to display elements of Matrix by entering coordinates

Question

I want to display elements of a matrix by entering coordinates in the command window

Example:

1 0 0
0 1 0
0 0 1

if I enter disp(x(2,2));

I want to get 1

Answer 1

You have to assign the matrix to ‘x’ first:

x = [1 0 0
     0 1 0
     0 0 1];
disp(x(2,2))
       1